Protractor



FIG. 1 is a front perspective view of a protractor showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a rear perspective view thereof; and,

FIG. 9 is an enlarged view of the protractor taken from the circled portion in FIG. 1 .

The broken line circles depict the limits of the enlarged views and form no part of the claimed design.

The broken lines depict portions of the protractor that form no part of the claimed design. 

CLAIM The ornamental design for a protractor, as shown and described. 